Thanks for you work on the GoTM Knowtalent.
What he said, for sure...
I can quickly think of 3 reasons that I enjoy the GotM;
1 Comradeship - Although I too often don't have/take time to respond, I thoroughly enjoy participating in this forum.
2 Variety - I would never choose some of the game restrictions - or leaders, for that matter - that get put into some of the GotMs. For example, later era starts; never choose 'em for a personal game. Yet, like the last India game, they can be very fun and interesting.
3 Accountability - I find it very easy to bail on my own games, and sometimes for the mildest of reasons. But, to participate in GotM, I am forced to finish what I started. I get satisfaction from powering through a game that I am not liking, but that I want to finish BECAUSE I'm part of a community.
So, given these "flavors", here are my thoughts;
Scenarios:
I have finished 1 of the scenarios, started a couple of others. They don't "draw" me like just starting a standard game. So if you choose to do some of them - I guess it would fulfill all 3 of my reasons.
Difficulty (Either sequential, or emphasizing lower levels):
Regarding difficulty levels: I am not good at the highest ones, I'd be happy if there are not too many of them (on the other hand, the ones training longer than I do surely also need a challenge)
My own opinion is that GoTM should pick a difficulty level for several many games in a row, and see how that works for folks.
I can win over 50% of my Immortal games, but have not yet scored my first Deity win. I have probably quit some Deity games that, had I persevered, I could have won. But when I started GotM I was only King-competent. I would think more of those mid-levels (King, Emperor) would be appreciated by (and helpful to) much of this community, but some of the games should be at Immortal/Deity. Beetle's idea is interesting, totally not sure what I think of it. But I agree that it would certainly indicate how much demand there is for each higher level.
(And I'm betting my first Deity win will be a GotM...)
Point Based Objectives, and Policy Restrictions:
I would suggest to start 1st day of the month - to have it simple.
I am all for "simpler is better". BoM is certainly simply, so probably a good idea. I have no objection to a Score Objective nor to Policy Restrictions, unless they unnecessarily complicate things. I'd say those are pretty much your call.
One thought about policy restrictions - if/when you add these, they should be for a reason. The Atomic Era start for the last game was that way. You articulated why you implemented it, and it made sense ("play him in traditional fashion"). A restriction like "England, so you must complete Exploration" makes sense, where "domination required, but you must complete Aesthetics" doesn't. No worries, though; can't remember you ever implementing something that didn't make sense anyway.